Well its important to know the difference in what your buying. When i say ebay specials, im saying companies such as R1 uses mainly economy line brake rotors and drill and use diamond slots Which is never recommended. Now look and this perspective call the company R1 and ask a price for a set of srt6 brake rotors and pads and make sure your getting a decent name on the pads not their own version of a ceramic brake pad which will crack under pressure...bet your bottom dollar that the price will be above 500...cause now this company has to buy either premium or power alloy! ::NOTE:: cause they do not make an economy line srt rotor, meaning now they are paying more to have the rotor drilled slotted and zinc plated and of course paying more for the rotor itself! Centric uses and sells 3 lines of rotors-economy, premium and power alloy. Companies like R1 use economy rotors but market premium rotors thats why there able to price so low. Fact is R1 does not make their own rotors they are supplied by Centric as most companies are. But all of these companies that you see on ebay like the two your looking at are buying from the same company and have the same process with a different name. Difference is non of these companies offer power alloy and non of them are direct with what you are getting and unless you are opening and cracking the rotor to see how they are built you will never know what you are getting! Power alloy is a technology that centric has branded and is an iron formula that results less wear and cracking and have internal directional venting vanes. Same formula that they use on their stoptech brand rotor. So bottom line is you never know what your gonna get when buying from a company such as R1 so as stated when considering brakes and how important they are, i would rather pay to have the real deal and piece of mind vs paying for something like an economy rotor thats drilled and slotted. The stock brakes on these cars are great, as stated before do not rush into buying anything....take your time and be HARSH with yourself!!!!! its your car and your brakes!! Good luck

Note

Economy rotor- standard rotor no drill or slot
Premium- drill and slotted or either or great weekend warrior upgrade
Power alloy-slotted mainly for tracking but you can have them dimpled or drilled

::note:: all the srt6 brake rotors i sell are power alloy